Switchable Low-Profile Broadband Frequency-Selective Rasorber/Absorber Based on Slot Arrays

Han, Ye; Che, Wenquan; Xiu, Xin; Yang, Wanchen; Christopoulos, C.

doi:10.1109/tap.2017.2759964

Cited by 191 publications

(64 citation statements)

References 20 publications

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“…ese FSRs are usually composed of a lossy layer and a metallic lossless bandpass FSS layer. e lossy layer can be implemented by two methods: magnetic loss material [8] and metallic element loaded with lumped resistors [5][6][7][9][10][11][12][13][14][15][16]. us, the transmission band can be realized by the resonance of the lossy layer and the lossless layer, while the lossy layer is used to achieve absorption characteristics.…”

Section: Introductionmentioning

confidence: 99%

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Design of Low-Profile Frequency-Selective Rasorbers Based on Three-Legged Loaded Element

Yu¹,

Zhou²,

Liu³

et al. 2020

International Journal of Antennas and Propagation

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A novel low-profile dual-polarization frequency-selective rasorber (FSR) with a transmissive window in the absorption band is proposed in this paper. Based on the equivalent circuit model (ECM), the principles of the impedance design are theoretically derived. Then, a two-layer structure model is constructed. The top layer is composed of a lossy three-legged loaded element (TLLE), and the bottom layer is composed of a square ring bandpass frequency-selective surface (FSS). Furthermore, the strips are folded to reduce the unit cell size to stabilize the angular response. The maximum stable response angle increases from 20 to 40° due to the miniaturized design under both TE and TM polarization. The experimental results of the prototype are in good agreement with the simulation results, which validates the rationality of our design.

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Section: Introductionmentioning

confidence: 99%

“…Originally, the absorption band and the transmission band are separated, which results in only one-side absorption (the absorption band below the passband [5][6][7] and the absorption band above the passband [8][9][10]). To achieve a transmission window in the absorption band, some methods have been reported [11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Design of Low-Profile Frequency-Selective Rasorbers Based on Three-Legged Loaded Element

Yu¹,

Zhou²,

Liu³

et al. 2020

International Journal of Antennas and Propagation

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show abstract

“…To reduce RCS effectively, the absorptive FSS (AFSS) radome, which the transmission band is located beside/within absorption bands, is proposed in Reference and has deeply researched in References . Often, AFSS radome is placed at the top of the antenna.…”

Section: Introductionmentioning

confidence: 99%

Design of switchable band‐notched frequency selective absorber

Guo

Chen

Zheng

et al. 2019

Int J RF Microw Comput Aided Eng

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An active band‐notched frequency selective absorber (BNFSA) with switchable notch band is proposed in this article. The BNFSA is a two‐layer structure composed of a lossy layer at the top and a ground plane at the bottom, separated by an air spacer. The element of the lossy layer is a lumped‐resistor‐loaded metallic dipole with a parallel LC resonance structure, which is realized by complementary n‐shaped resonator (CnR) inserted in the center, and PIN diode is welded at two arms of CnR. The bias circuit printed on the back of the substrate of the lossy layer connects to anode and cathode of the diode by via hole and isolates by the inductor. Simulation results show that the notch bands are located at 4.50 and 6.81 GHz when the diode sets to ON and OFF, respectively. To validate the performance of switchable BNFSA, the prototypes are fabricated and measured, reasonable agreement between simulated and measured results is obtained.

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“…The insertion loss (IL) of pass-band and the fractional bandwidth (FBW) of the 10-dB-absorption band (with the reflec-tion coefficient less than −10 dB) are two criteria for evaluating FSR. In recent years, various FSRs have been widely investigated, such as the FSRs with high-frequency passband proposed in [13,14,15,16], and the FSRs with twosided absorption bands reported in [17,18,19,20,21,22,23,24,25,26]. Besides, to meet the stealth requirements of low-frequency antenna systems, several FSRs with lowfrequency pass-band were also presented in [27,28,29,30,31].…”

Section: Introductionmentioning

confidence: 99%

Design of frequency selective rasorber with high in-band transmission and wideband absorption properties

Sheng

Gao

Liu

2019

IEICE Electron. Express

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A low-frequency transmissive frequency selective rasorber (FSR) with high in-band transmission and wideband absorption characteristics is proposed and experimentally demonstrated. It comprises the top resistive sheet and the bottom bandpass FSS. For resistive sheet, the tiny strip-type parallel LC resonator composed of square spiral inductor and its two-sided capacitors is inserted between the resistor-loaded crosses to achieve lower insertion loss (IL) by cutting off the lossy path. The bandpass FSS with high selectivity consists of Jerusalem cross slot array and capacitive metallic patches. An IL of 0.3 dB is obtained at 3.55 GHz, and the 10-dB-absorption band is 5.4-13.2 GHz.

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Switchable Low-Profile Broadband Frequency-Selective Rasorber/Absorber Based on Slot Arrays

Cited by 191 publications

References 20 publications

Design of Low-Profile Frequency-Selective Rasorbers Based on Three-Legged Loaded Element

Design of Low-Profile Frequency-Selective Rasorbers Based on Three-Legged Loaded Element

Design of switchable band‐notched frequency selective absorber

Design of frequency selective rasorber with high in-band transmission and wideband absorption properties

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